CN205608234U - Compound light guide plate and liquid crystal display module thereof - Google Patents
Compound light guide plate and liquid crystal display module thereof Download PDFInfo
- Publication number
- CN205608234U CN205608234U CN201620214036.4U CN201620214036U CN205608234U CN 205608234 U CN205608234 U CN 205608234U CN 201620214036 U CN201620214036 U CN 201620214036U CN 205608234 U CN205608234 U CN 205608234U
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- light guide
- plate body
- conducting plate
- guide plate
- incidence surface
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Abstract
The utility model relates to a compound light guide plate, it includes the light guide plate body, it is still including forming the light guide plate body goes out transparent light guide spare on plain noodles and the bottom surface, transparent light guide spare the edge with align in the income plain noodles of light guide plate body, or its edge extension is to surpassing the income plain noodles of light guide plate body, perhaps through set up transparent light guide spare on the plain noodles is gone into to the light guide plate body, can effectively increase like this into the optical efficiency, reduce the optics loss, and need not reduce the thickness of light guide plate body, reduce the degree of difficulty of the ultra -thin design of complete machine. This application still relates to a liquid crystal display module.
Description
Technical field
This utility model belongs to display device field, relates to a kind of light guide plate, is specifically related to a kind of composite light guide plate and liquid crystal display module thereof.
Background technology
Available liquid crystal module is as shown in Figure 1, generally it is made up of liquid-crystalline glasses 1, optical film combination 2, light conducting plate body 3, light source 4, reflector plate 5 and back cover 6, reflector plate 5 and light guide plate 3 are placed sequentially in the cavity of back cover 6, back cover 6 supports and partial appearance function as structure, this kind of structure complexity, causes complete machine thickness thicker, relatively costly, and backboard is generally metal or plastic parts, its color is single, is difficult to make different appearance.
Light conducting plate body 3 generally uses PMMA, its refractive index n=1.49, and air refraction n=1.When light is propagated in PMMA, according to Snell's law (Snell's Law), if the angle of light and PMMA normal is more than the angle of total reflection, light is propagated in PMMA always, without spilling, thus realizes light guide effect.Existing light conducting plate body 3 structure is generally as in figure 2 it is shown, it is positioned at the side of light source 4, overall in rectangular structure；As shown in Figure 2, define it with light source 4 one side be in opposite directions its incidence surface 31 one side corresponding with incidence surface 31 be that the one side that shady face 33 is adjacent with optical film combination 2 is exiting surface 32 and the one side adjacent with reflector plate 5 is bottom surface 34, bottom surface 34 is formed some sites 35.In order to reach to show that the ultrathin design of module, conventional method are to reduce the thickness of light guide plate, after the reduction of light guide plate, the LED thickness matched also to reduce, and existing ultra-thin LED brightness cannot meet the demand of large scale TV high brightness.After PMMA is thinning simultaneously, it is easily deformed, and causes into light uneven, local light leak easily occurs.
Summary of the invention
This utility model purpose is to provide a kind of composite light guide plate to overcome the deficiencies in the prior art.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of composite light guide plate, it includes light conducting plate body, it also includes being formed at transparent light guide part on described light conducting plate body exiting surface and bottom surface, the edge of described transparent light guide part aligns with the incidence surface of described light conducting plate body, or its edge extends to the incidence surface beyond described light conducting plate body.
Optimally, light guide reflective surface that described transparent light guide part comprises with described light conducting plate body exiting surface or bottom surface fit the binding face light guide incidence surface parallel with described incidence surface is corresponding with described light guide incidence surface and be connected described light guide incidence surface and the joint face of described light guide reflective surface；The width of described light guide reflective surface is less than or equal to the width of described light guide incidence surface.
Further, described joint face is arcwall face.
Further, described joint face includes the first plane that is parallel with described binding face and that intersect with described light guide incidence surface and is connected described first plane and the second plane of described light guide reflective surface；Or described joint face includes first plane parallel with described binding face and is connected two the second planes of described first plane and described light guide reflective surface.
Another purpose of the present utility model is to provide a kind of composite light guide plate, and it includes light conducting plate body, and it also includes the transparent light guide part being arranged on described light conducting plate body incidence surface.
Optimally, the end face of described transparent light guide part is isosceles trapezoid, right-angled trapezium, trapezoidal, hexagon with groove or six arris shapes.
Further, described light conducting plate body and described transparent light guide part is integrally formed or pastes by being arranged at optical cement layer therebetween.
Further, the refractive index of described optical cement layer and transparent light guide part or light conducting plate body is same or like.
Further, the material of described transparent light guide part is PMMA, PC, PS or glass, and described light conducting plate body is PMMA, PC, PS or glass.
The yet another object of the present invention is to provide a kind of liquid crystal display module, and it includes above-mentioned composite light guide plate.
Owing to technique scheme is used, this utility model compared with prior art has the advantage that this utility model composite light guide plate, it includes light conducting plate body, by forming transparent light guide part on light conducting plate body exiting surface and bottom surface, the edge of this transparent light guide part aligns with the incidence surface of light conducting plate body, or its edge extends to the incidence surface beyond light conducting plate body；Or by arranging transparent light guide part on light conducting plate body incidence surface；Can be effectively increased into light efficiency, reduce optical loss, without the thickness of reduction light conducting plate body, reduce the difficulty of complete machine ultrathin design.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of available liquid crystal module；
Accompanying drawing 2 is the structural representation of existing light guide plate；
Accompanying drawing 3 is the structural representation in this utility model composite light guide plate first embodiment；
Accompanying drawing 4 is the different structure schematic diagram of transparent light guide part end face in this utility model composite light guide plate first embodiment: (a) first structural representation；(b) second structural representation；(c) the 3rd structural representation；
Accompanying drawing 5 is the structural representation in this utility model composite light guide plate the second embodiment；
Accompanying drawing 6 is the structural representation in this utility model composite light guide plate the 3rd embodiment；
Accompanying drawing 7 is the different structure schematic diagram of transparent light guide part in this utility model composite light guide plate the 3rd embodiment: (a) first structural representation；(b) second structural representation；(c) the 3rd structural representation；(d) the 4th structural representation；(f) the 5th structural representation；
Accompanying drawing 8 is the structural representation of this utility model liquid crystal display module；
Wherein, 1, liquid-crystalline glasses；2, optical film combination；3, light conducting plate body；31, incidence surface；32, exiting surface；33, shady face；34, bottom surface；35, site；4, light source；5, optical cement；6, reflectance coating；7, optical cement layer；8, transparent light guide part；8 ', transparent light guide part；8 ", transparent light guide part；81, joint face；81 ', joint face；81 ", joint face；82, binding face；82 ', binding face；82 ", binding face；83, light guide incidence surface；83 ', light guide incidence surface；83 ", light guide incidence surface；84, light guide reflective surface；84 ', light guide reflective surface；84 ", light guide reflective surface；811, the first plane；811 ', first plane；812, the second plane；812 ', second plane；9, transparent light guide part.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model preferred embodiment is described in detail:
Embodiment 1
The present embodiment provides a kind of composite light guide plate, as it is shown on figure 3, it mainly includes light conducting plate body 3 and transparent light guide part 8.Transparent light guide part 8 has two, is separately positioned on exiting surface 32 and the bottom surface 34 of light conducting plate body 3 so that the end face of transparent light guide part 8 is concordant with the incidence surface of light conducting plate body 3；The size being smaller in size than light conducting plate body 3 due to transparent light guide part 8 so that the space (can pass through the techniques such as silk screen printing, laser, etching to make) making site 35 is left in the bottom surface 34 of light conducting plate body 3.
In the present embodiment, light conducting plate body 3 and transparent light guide part 8 are pasted by being arranged on they optical cement layer 7 therebetween, and it can be heat curing-type, it is also possible to be UV type；The refractive index of optical cement layer 7 is close with light conducting plate body 3 and transparent light guide part 8, the most identical, such that it is able to reduce the interface reflection of optical cement layer 7 and light conducting plate body 3 and transparent light guide part 8, reduces light loss.
In the present embodiment, transparent light guide part 8 matches with light conducting plate body 3, and shown in its end face structure such as Fig. 4 (a), it has joint face 81, binding face 82, light guide incidence surface 83 and light guide reflective surface 84；Binding face 82 is fitted by exiting surface 32 or the bottom surface 34 of optical cement layer 7 with light conducting plate body 3, and light guide incidence surface 83 is concordant with the incidence surface 31 of light conducting plate body 3；Light guide reflective surface 84 is then corresponding with light guide incidence surface 83, and its width is less than or equal to the width (light guide incidence surface 83, the height of light guide reflective surface 84 during width refers to Fig. 4 (a)) of light guide incidence surface 83 herein；Joint face 81 then includes the first plane 811 that is parallel with binding face 82 and that intersect with light guide incidence surface 83 and is connected the second plane 812 of the first plane 811 and light guide reflective surface 84.
Light conducting plate body 3 can be PMMA (polymethyl methacrylate), PC (Merlon) or glass, and transparent light guide part 8 can be the transparent materials such as PMMA, PC, PS (polystyrene) or glass；In the present embodiment, light conducting plate body 3 is glass, and transparent light guide part 8 is PMMA so that composite light guide plate has and excellent enters light efficiency.
Embodiment 2
The present embodiment provides a kind of composite light guide plate, basically identical with embodiment 1 of its structure, except for the difference that employs different transparent light guide parts 8 '.Shown in the end face structure of this transparent light guide part 8 ' such as Fig. 4 (b), it also has joint face 81 ', binding face 82 ', light guide incidence surface 83 ' and light guide reflective surface 84 '；Binding face 82 ' is fitted (or transparent light guide part 8 ' is one-body molded with light conducting plate body 3) by optical cement layer 7 and the exiting surface 32 of light conducting plate body 3 or bottom surface 34, and light guide incidence surface 83 ' is concordant with the incidence surface 31 of light conducting plate body 3；Light guide reflective surface 84 ' is then corresponding with light guide incidence surface 83 ', and its width is less than or equal to the width of light guide incidence surface 83 '；Joint face 81 ' then includes the first plane 811 ' and two the second planes 812 ', first plane 811 ' is paralleled with binding face 82 ', and two the second planes 812 ' connect the first plane 811 ' and light guide incidence surface the 83 ', first plane 811 ' and light guide reflective surface 84 ' respectively.
Embodiment 3
The present embodiment provides a kind of composite light guide plate, basically identical with embodiment 1 of its structure, except for the difference that employs different transparent light guide parts 8 ".This transparent light guide part 8 " end face structure such as Fig. 4 (c) shown in, it also has joint face 81 ", binding face 82 ", light guide incidence surface 83 " and light guide reflective surface 84 "；Binding face 82 " fitted (or transparent light guide part 8 ' is one-body molded with light conducting plate body 3) by optical cement layer 7 and the exiting surface 32 of light conducting plate body 3 or bottom surface 34, light guide incidence surface 83 " concordant with the incidence surface 31 of light conducting plate body 3；Light guide reflective surface 84 " then with light guide incidence surface 83 " corresponding, its width be less than or equal to light guide incidence surface 83 " width；Joint face 81 " curved, connect light guide reflective surface 84 " and light guide incidence surface 83 ".
Embodiment 4
The present embodiment provides a kind of composite light guide plate, and basically identical with embodiment 2 of its structure, except for the difference that position and the shape of transparent light guide part 8 ' is slightly different.Make its edge beyond the incidence surface 83 ' of light conducting plate body 3 as it is shown in figure 5, the one end at light guide incidence surface 83 ' place is horizontal-extending to light source 4 direction in transparent light guide part 8 '.
Embodiment 5
The present embodiment provides a kind of composite light guide plate, as shown in Figure 6, it includes light conducting plate body 3 and transparent light guide part 9, and transparent light guide part 9 is arranged on the incidence surface 31 of light conducting plate body 3, and its connected mode bonds for using glue or glued membrane light conducting plate body 3 and transparent light guide part 9.Light conducting plate body 3 can be PMMA (polymethyl methacrylate), PC (Merlon) or glass, and transparent light guide part 9 can be the transparent materials such as PMMA, PC, PS (polystyrene) or glass；In the present embodiment, light conducting plate body 3 is glass, and transparent light guide part 9 is PMMA so that composite light guide plate has and excellent enters light efficiency.In the present embodiment, light conducting plate body 3 and transparent light guide part 8 are pasted by being arranged on they optical cement layer 7 therebetween, and it can be heat curing-type, it is also possible to be UV type；The refractive index of optical cement layer 7 is close with the refractive index of light conducting plate body 3 and transparent light guide part 9, the most identical, such that it is able to reduce glue-line and light conducting plate body 3, the interface reflection of transparent light guide part 9, reduces light loss.
Transparent light guide part 9 matches with light conducting plate body 3, and its end face structure is isosceles trapezoid (as shown in Fig. 7 (a)), right-angled trapezium (as shown in Fig. 7 (b)), trapezoidal (as shown in Fig. 7 (c)) with groove, hexagon (as shown in Fig. 7 (d)) or six arris shapes (as shown in Fig. 7 (e))；When its end face structure as Fig. 7 (a), such as Fig. 7 (b) or as shown in Fig. 7 (c) time, the thickness of transparent light guide part 9 is gradually reduced to incidence surface 31 direction of light conducting plate body 3.Specifically: when its end face structure is as shown in Fig. 7 (a) or Fig. 7 (b), transparent light guide part 9 is in addition to exiting surface (surface fitted with the incidence surface 31 of light conducting plate body 3), and other three faces are smooth surface；When its end face structure is as shown in Fig. 7 (c), incidence surface, two inclined-planes in the middle of groove are smooth surface, and two perpendiculars of two horizontal planes intersected with incidence surface and incidence surface upper-lower position need to do reflectance coating or shading treatment；When its end face structure is as shown in Fig. 7 (d), transparent light guide part 9 incidence surface size is little compared with its exiting surface, the width of exiting surface is identical with the width of light conducting plate body 3, its 2 adjacent with incidence surface bevel angle is 0-15 °, when light reflexes on inclined-plane, its reflection light increases with the angle of incidence of light conducting plate body 3, can increase light guide effect (in addition to exiting surface 544, other 5 faces are smooth surface)；When its end face structure is as shown in Fig. 7 (e), depending on its incidence surface width can be according to the LED width of coupling, light can be imported light conducting plate body 3 by four inclined-planes.The most as required, its end face is arranged to the structures such as rectangle, square, triangle, pentagon, polygon.
Embodiment 6
The present embodiment provides a kind of liquid crystal display module, as shown in Figure 8, includes the composite light guide plate in embodiment 2, and it also includes light source 4, liquid-crystalline glasses 1 and optical film combination 2.The exiting surface 32 (part do not fitted by transparent light guide part 8 ') that optical film combination 2 is used for light with glass light guide plate 3 is corresponding, and liquid-crystalline glasses 1 is then correspondingly arranged in the top of optical film combination 2；Light source 4 is corresponding with the incidence surface 31 of glass light guide plate；The bottom surface 34 of glass light guide plate 3 is provided with multiple site 35, and posts reflectance coating 6 (part do not fitted by transparent light guide part 8 ') by optical cement 5.
Above-described embodiment is only for illustrating technology of the present utility model design and feature; its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this; protection domain of the present utility model can not be limited with this; all equivalence changes made according to this utility model spirit or modification, all should contain within protection domain of the present utility model.
Claims (10)
1. a composite light guide plate, it includes light conducting plate body, it is characterized in that: it also includes being formed at transparent light guide part on described light conducting plate body exiting surface and bottom surface, the edge of described transparent light guide part aligns with the incidence surface of described light conducting plate body, or its edge extends to the incidence surface beyond described light conducting plate body.
Composite light guide plate the most according to claim 1, it is characterised in that: light guide reflective surface that described transparent light guide part comprises with described light conducting plate body exiting surface or bottom surface fit the binding face light guide incidence surface parallel with described incidence surface is corresponding with described light guide incidence surface and be connected described light guide incidence surface and the joint face of described light guide reflective surface；The width of described light guide reflective surface is less than or equal to the width of described light guide incidence surface.
Composite light guide plate the most according to claim 2, it is characterised in that: described joint face is arcwall face.
Composite light guide plate the most according to claim 2, it is characterised in that: described joint face includes the first plane that is parallel with described binding face and that intersect with described light guide incidence surface and is connected described first plane and the second plane of described light guide reflective surface；Or described joint face includes first plane parallel with described binding face and is connected two the second planes of described first plane and described light guide reflective surface.
5. a composite light guide plate, it includes light conducting plate body, it is characterised in that: it also includes the transparent light guide part being arranged on described light conducting plate body incidence surface.
Composite light guide plate the most according to claim 5, it is characterised in that: the end face of described transparent light guide part is isosceles trapezoid, right-angled trapezium, trapezoidal, hexagon with groove or six arris shapes.
Composite light guide plate the most according to claim 1 or 5, it is characterised in that: described light conducting plate body and described transparent light guide part is integrally formed or pastes by being arranged at optical cement layer therebetween.
Composite light guide plate the most according to claim 7, it is characterised in that: the refractive index of described optical cement layer and transparent light guide part or light conducting plate body same or like.
Composite light guide plate the most according to claim 1 or 5, it is characterised in that: the material of described transparent light guide part is PMMA, PC, PS or glass, and described light conducting plate body is PMMA, PC, PS or glass.
10. a liquid crystal display module, it includes arbitrary described composite light guide plate in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214036.4U CN205608234U (en) | 2016-03-21 | 2016-03-21 | Compound light guide plate and liquid crystal display module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214036.4U CN205608234U (en) | 2016-03-21 | 2016-03-21 | Compound light guide plate and liquid crystal display module thereof |
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| Publication Number | Publication Date |
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| CN205608234U true CN205608234U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620214036.4U Expired - Fee Related CN205608234U (en) | 2016-03-21 | 2016-03-21 | Compound light guide plate and liquid crystal display module thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589126A (en) * | 2016-03-21 | 2016-05-18 | 安比斯特殊玻璃（苏州）有限公司 | Combined type light guide plate and liquid crystal display module thereof |
| CN115289420A (en) * | 2022-07-01 | 2022-11-04 | 广东盛世名门照明科技有限公司 | Underground lamp |
-
2016
- 2016-03-21 CN CN201620214036.4U patent/CN205608234U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589126A (en) * | 2016-03-21 | 2016-05-18 | 安比斯特殊玻璃（苏州）有限公司 | Combined type light guide plate and liquid crystal display module thereof |
| CN115289420A (en) * | 2022-07-01 | 2022-11-04 | 广东盛世名门照明科技有限公司 | Underground lamp |
| CN115289420B (en) * | 2022-07-01 | 2023-10-31 | 广东盛世名门科技有限公司 | Underground lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181214 Address after: 215000 East Fang Industrial Park Area B, No. 20 Huayun Road, Suzhou Industrial Park, Jiangsu Province Patentee after: Sifo Photoelectric (Suzhou) Co.,Ltd. Address before: 215000 No. 367 Shanhu West Road, Wujiang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: NBS GLASS (SUZHOU) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |